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869085-16-5

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869085-16-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 869085-16-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,9,0,8 and 5 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 869085-16:
(8*8)+(7*6)+(6*9)+(5*0)+(4*8)+(3*5)+(2*1)+(1*6)=215
215 % 10 = 5
So 869085-16-5 is a valid CAS Registry Number.

869085-16-5Downstream Products

869085-16-5Relevant articles and documents

Intramolecular carbolithiation of allyl o-lithioaryl ethers: A new enantioselective synthesis of functionalized 2,3-dihydrobenzofurans

Barluenga, Jose,Fananas, Francisco J.,Sanz, Roberto,Marcos, Cesar

, p. 5397 - 5407 (2007/10/03)

A new and easy method for the diastereoselective synthesis of 3-functionalized 2,3-dihydrobenzofuran derivatives from allyl 2-bromoaryl ethers is described. The key step of this transformation involves an intramolecular carbolithiation reaction of allyl 2-lithioaryl ethers. The substituents in both the allyl and the aryl moieties play an important and decisive role in stopping the reaction at the benzofuran thus avoiding a γ-elimination reaction. Finally, this process is amenable to the synthesis of enantiomerically enriched compounds by using ( - )-sparteine as a chiral inductor.

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